<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>1.引入vue3.x源码</title>
    <script src="./vue.global.js"></script>
</head>
<body>
<div id="vueApp">

</div>
<script type="application/javascript">
    Vue.createApp({
        template: '<div>Hello World</div>'
    }).mount("#vueApp");
</script>
</body>
</html>